[ https://issues.apache.org/jira/browse/MAPREDUCE-2639?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Josh Wills updated MAPREDUCE-2639: ---------------------------------- Attachment: MAPREDUCE-2639.patch > MR-279: Fixup the exponentially smoothed runtime estimator, fix a couple of > bugs in DataStatistics, and do a little bit of cleanup. > ----------------------------------------------------------------------------------------------------------------------------------- > > Key: MAPREDUCE-2639 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-2639 > Project: Hadoop Map/Reduce > Issue Type: Improvement > Components: mrv2 > Environment: All > Reporter: Josh Wills > Assignee: Josh Wills > Priority: Minor > Attachments: MAPREDUCE-2639.patch > > > A catch-all JIRA for a pass I took through the v2.app.speculate package. > 1) Fixed the ExponentiallySmoothedTaskRuntimeEstimator so that it can run and > pass the test defined in TestRuntimeEstimators. > 2) Fixed two bugs in DataStatistics: 1) a divide by zero in the variance > calculation in the case that count == 0 and 2) a synchronization issue in how > the updateStatistics method was implemented, > 3) A bunch of typo corrections, formatting fixes, and adding some consistency > around the null value checking. > I probably need to do a couple more passes through this code to get it into > better shape, but this seemed like a good start. Will attach my patch > momentarily. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira